Catheter



FIG. 1 is a front view of a catheter showing our new design;

FIG. 2 is a top view thereof;

FIG. 3 is a left-side view thereof;

FIG. 4 is a right-side view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a cross-sectional view thereof taken along lines 7-7 in FIG. 1.

The broken lines depict environmental subject matter only and form no part of the claimed design.

The dot-chain lines depict a boundary between claimed and unclaimed portions and form no part of the claimed design. 

CLAIM The ornamental design for a catheter, as shown and described. 